Computer Awareness for Upcoming Exams Set 91

Computer Awareness Questions for IBPS PO/Clerk, IBPS RRB, NIACL, NICL, RBI Grade B, BOI, OBC SO, BoB and other competitive exams.

1. Who invented the QWERTY keyboard?
   A) Carl Sholes
   B) Karl Sholes
   C) Christopher Latham Sholes
   D) Khristopher Sholes
   E) None of these
   
   View Answer

     Option C
   Some Extra:
   Christopher Latham Sholes invented the keyboard in 1868.
2. After a credit card transaction has been authorized by the issuing bank by sending an authorization code to the merchant, the settlement stage of the process begins. Which of the following is a system type used to process such statements? 
   A)  Multitasking
   B)  Memory Processing
   C)  Level Processing
   D)  Batch Processing
   E)  Online Processing
   
   View Answer

     Option D
   Some Extra:
   After a credit card transaction has been authorized by the issuing bank by sending an authorization code to the merchant, the settlement stage of the process begins. This is called batch processing because a number (or batch) of transactions is settled all at one time.
3. Which of the following is not a DBMS software?
   A)  dBASE
   B)  FoxPro
   C)  Oracle
   D)  Sybase
   E)  Database2000
   
   View Answer

     Option E
   Some Extra:
   Database2000 is not a DBMS Software.
4. Who among the following person has define the term ‘computer virus’?
   A)  Tom Kilburn
   B)  Charles babbage
   C)  konrad zuse
   D)  Frederick cohen
   E)  none of these
   
   View Answer

     Option D
   Some Extra:
   Frederick B. Cohen is an American computer scientist and best known as the inventor of computer virus defense techniques. He gave the definition of “computer virus”.
5. Which layer of the OSI model performs segmentation of a data stream?
   A)  Application layer
   B)  Network layer
   C)  Physical layer
   D)  Transport layer
   E)  Presentation layer
   
   View Answer

     Option D
   Some Extra:
   The Transport layer receives large data streams from the upper layers and breaks these up into smaller pieces called segments.
6. When machine instructions are being executed by a computer, the instruction phase followed by the execution phase is referred to as
   A)  program cycle
   B)  machine instruction
   C)  execution cycle
   D)  task cycle
   E)  machine cycle
   
   View Answer

     Option E
   Some Extra:
   The steps performed by the computer processor for each machine language instruction received. The machine cycle is a 4 process cycle that includes reading and interpreting the machine language, executing the code and then storing that code.
7. Excel is designed to provide visual cues to the relationship between the cells that provide values to the formulas or the cells that depend on the formulas by ________.
   A)  Bolding the cell references to match the color coding of the borders around the referenced worksheet cells.
   B)  Difficult lighting the cell references.
   C)  Color coding the cell references in the formula to match the border around the referenced worksheet cells.
   D)  Bold cell reference
   E)  None of these
   
   View Answer

     Option C
   Some Extra:
   Excel is designed to provide visual cues to the relationship between the cells that provide values to the formulas or the cells that depend on the formulas by color coding the cell references in the formula to match the border around the referenced worksheet cells.
8. SNA stands for ________.
   A)  System Network Architecture
   B)  System Network Application
   C)  System Network Adapter
   D)  Simple Network Architecture
   E)  None of these
   
   View Answer

     Option A
   Some Extra:
   Systems Network Architecture (SNA) is IBM’s proprietary networking architecture created in 1974. It is a complete protocol stack for interconnecting computers and their resources. SNA describes formats and protocols and is in itself not a piece of software.
9. Dr. E.F. Codd represented ______ rules that a database must obey if it has to be considered truly relational.
   A)  10
   B)  08
   C)  12
   D)  6
   E)  5
   
   View Answer

     Option C
   Some Extra:
   Dr Edgar F. Codd, after his extensive research on the Relational Model of database systems, came up with twelve rules of his own, which according to him, a database must obey in order to be regarded as a true relational database.
10. Which layer of the OSI model defines the language and syntax for programs?
    A)  Data link layer
    B)  Presentation layer
    C)  Application layer
    D)  Session layer
    E)  Transport layer
    
    View Answer

      Option C
    Some Extra:
    The application layer of the OSI model provides a framework to run application programs. It defines the language and syntax used by programs to communicate with supplementary programs.

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